Here are some scenes from the film ‘Button Ballet.’A special crane and tracking system was builtfor this film, together with overhead projection of the paths that the buttons were animated along. This first extract is from the opening.

This next extract shows the two lead dancers followed by a dance for three smaller buttons. The two spotlights were mirrors fixed to double gearboxes and animated frame by framereflecting a spotlight.

Further scenes with lead dancers in the spotlight!Can you work out how the button jumps through the air synchronisedaccurately to the music? Click here for answer